EP1471766B1 - Dispositif électronique avec haut-parleur - Google Patents

Dispositif électronique avec haut-parleur Download PDF

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Publication number
EP1471766B1
EP1471766B1 EP03290983A EP03290983A EP1471766B1 EP 1471766 B1 EP1471766 B1 EP 1471766B1 EP 03290983 A EP03290983 A EP 03290983A EP 03290983 A EP03290983 A EP 03290983A EP 1471766 B1 EP1471766 B1 EP 1471766B1
Authority
EP
European Patent Office
Prior art keywords
wall
loudspeaker
casing
electronic device
retaining means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03290983A
Other languages
German (de)
English (en)
Other versions
EP1471766A1 (fr
Inventor
Cornelius Sperle
Gilles Bourgoin
Alain Barrault
Roger Restif
André Ros
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
THOMSON LICENSING
Original Assignee
Thomson Licensing SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson Licensing SAS filed Critical Thomson Licensing SAS
Priority to EP03290983A priority Critical patent/EP1471766B1/fr
Priority to DE60335079T priority patent/DE60335079D1/de
Priority to CN2004100328559A priority patent/CN1540981B/zh
Priority to US10/829,802 priority patent/US7302075B2/en
Publication of EP1471766A1 publication Critical patent/EP1471766A1/fr
Application granted granted Critical
Publication of EP1471766B1 publication Critical patent/EP1471766B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • H04N5/642—Disposition of sound reproducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers

Definitions

  • the present invention relates to an electronic device comprising a loudspeaker, in particular a TV set, a radio or other types of domestic electronic equipment.
  • a loudspeaker in particular a TV set, a radio or other types of domestic electronic equipment.
  • the mounting of the loudspeakers is more problematic than the mounting of most other components, because the way the loudspeaker is mounted has a critical influence on the quality of sound generated by the device. This quality is seriously impaired if the mounting of the loudspeaker is not firm enough to prevent the frame of the loudspeaker from trembling with respect to a support on which it is mounted, or if the support can be excited to vibrate by the sound produced by the loudspeaker.
  • loudspeakers have been mounted by screwing to a support, but with this technique, it is difficult to obtain a good compromise between a loose fixation that does not prevent the loudspeaker from trembling with respect to the support and a rigid fixation that will transmit vibrations of the loudspeaker to the support.
  • EP0440551 discloses such an embodiment wherein a TV loudspeaker unit is fixed by screws or clips.
  • a TV set in which a loudspeaker is mounted without the use of screws is known from JP 60 043 995 A .
  • a loudspeaker can be mounted on a cabinet of a TV set by engaging one side of the frame of the loudspeaker behind a pawl provided at an inner surface of a baffle board.
  • a second pawl is connected to an edge of the baffle board by the film hinge. By folding the film hinge, this second pawl can be brought into engagement with the other side of the frame of the loudspeaker, and the pawl is held in position by mounting a rear cover to the cabinet.
  • baffle board and the loudspeaker frame must be manufactured with narrow tolerance ranges. Namely, if the pawls are to close to each other, it may be impossible to bend the film hinges as far as necessary in order to enable the rear cover to be mounted, and if they are to far apart, the hold of the loudspeaker by the pawls may not be firm enough, so that the loudspeaker may rattle in operation.
  • US6335974 discloses a TV speaker system with woofers and sound conductors.
  • an electronic device comprising a casing, a loudspeaker unit, a first surface of which faces a first wall of the casing; retaining means formed in the casing so as to face a second surface of the loudspeaker unit.
  • the loudspeaker unit is received between said first wall and the retaining means of the casing and there is at least one first vibration absorbing body forming a spacer between the first surface and the first wall and at least one second vibration absorbing body forming a spacer between the second surface of the loudspeaker unit and said retaining means.
  • any desired degree of rigidity of coupling between the loudspeaker unit and the casing can be obtained reliably and reproducibly.
  • the loudspeaker unit In order to precisely define the position of the loudspeaker unit in space, it may be supported at four points at least, so that preferably, at least four of said vibration absorbing bodies are present.
  • a recess for receiving part of such a vibration absorbing body may be provided in at least one of said first wall, said retaining means and said loudspeaker unit.
  • the loudspeaker unit comprises a hollow shell having at least one opening wherein a loudspeaker is mounted.
  • a loudspeaker unit is particularly suited as a subwoofer unit.
  • the first wall may be an outer wall of the casing, two openings of the shell both may face this outer wall, and sound passages may be formed in regions of said wall facing said openings.
  • the surface of the loudspeaker unit that faces the outer wall has at least two facets forming an obtuse angle, and one of said openings is formed in each facet.
  • Said first wall may form a bottom side of said casing.
  • the loudspeaker unit is a subwoofer unit, it may be placed at this bottom side without impairing the sound quality, and other surface regions of the casing remain available for placing a CRT, treble loudspeakers, and so on, so that a very compact casing may be achieved.
  • the first wall is preferably curved.
  • a space for receiving the loudspeaker unit is formed.
  • a prominent point at its outer side may form a resting point of the casing.
  • At least two more resting points may be formed by legs projecting from the body of the casing.
  • the invention can be used with any type of loudspeaker enclosure, as for instance with one or more bass reflex ports, or with a sealed box or a box with one or more passive drones.
  • the TV set of Figs. 1 and 2 has a casing assembled from a plurality of molded plastic components.
  • the lateral ribs 3 protrude beyond the bottom rib 4 so as to form two feet 6 on which the casing rests.
  • a rear casing element 7 forming side, top and rear walls 8, 9, 10 of the casing is fixed at an inner side of ribs 3, 5; a bottom wall 11 is connected to bottom rib 4 and to a lower edge of the rear casing element 7.
  • a flat portion of this bottom wall 11 is flush with the lower edge of casing element 7 and is not to be seen; only a downwardly extending projection 12 in the bottom wall 11 is shown.
  • the lowest point 13 of this projection is a third resting point of the casing.
  • the projection 12 has two sound passages 14, 15, one, 14, facing to the front and other, 15, to the rear. Each of these passages is formed by a plurality of parallel slits.
  • Fig. 3 is an enlarged detail of the bottom region of the TV set, partly cut open so as to show the structure inside the projection 12 of bottom wall 11.
  • a hollow plastic shell 18 is held in place by a plurality of buffers 19 formed of a soft, resilient material. Two of these buffers 19 are engaged in recesses of the partition wall 17, on the one hand, and of a top surface 20 of the shell 18, on the other.
  • Another buffer 19 is placed between the lowest point 13 of the bottom wall 11 and a center of bottom surface 21 of a shell 18. More buffers 19 are sandwiched between lateral facets 22, 23 of the bottom surface 21 and inward projections of the bottom wall 11.
  • the front facet 22 of bottom surface 21 has an opening in which a loudspeaker 24 is placed.
  • a rear side of the loudspeaker 24 communicates with another opening 25 in the rear facet 23.
  • the openings are placed facing front and rear sound passages 14, 15 of the bottom wall 11, respectively.
  • Fig. 4 is a perspective view of the TV set, with the rear casing element 7 and the bottom wall 11 removed, seen from the bottom side.
  • the loudspeaker unit formed of the shell 18 and the loudspeaker 24 is clearly visible.
  • the bottom surface 21 has three facets, the flat front and rear facets 22, 23 and a third facet 26 which is curved so as to fit to the curvature of the projection 12 of the bottom wall 11, so that the three buffers 19 shown on the curved facet 26 come into direct contact with the bottom wall 11, once installed, and are slightly compressed between it and the shell 18.
  • Each of the flat facets 22, 23 has two buffers 19. Between the top surface 20 and the partition wall 17, there are four buffers, not shown in the Figure, at locations roughly above the buffers 19 of the flat facets 22, 23.
  • Fig. 5 shows the TV set from the same point of view as Fig. 4 , but with the bottom wall 11 in place. One corner of the bottom wall is cut away so as to show its arrangement with respect to the loudspeaker unit.
  • Fig. 6 is a perspective view analogous to that of Fig. 4 of a slightly modified embodiment.
  • the partition wall is reduced to two webs 17a, 17b extending from front to rear, with a broad gap 27 formed in between.
  • This gap allows for an upward projection 28 of top surface 20 to extend into the gap 27.
  • the solenoid 29 see Fig. 3
  • the space 16 between the webs 17a, 17b and the bottom wall 11 may be made flatter, so that the casing may be made very compact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Claims (11)

  1. Dispositif électronique comprenant
    - un boîtier (1, 7, 11) ;
    - une unité de haut-parleur (18, 24), dont une première surface (21) fait face à une première paroi (11) du boîtier ; et
    - des moyens de fixation (17 ; 17a ; 17b) ;
    caractérisé en ce que l'unité de haut-parleur comprend un haut-parleur et une coque creuse (18) ;
    des moyens de fixation sont formés dans le boîtier de manière à faire face à une deuxième surface (20) de la coque creuse ; et
    la coque creuse (18) est reçue entre ladite première paroi (11) et les moyens de fixation (17 ; 17a ; 17b) du boîtier, au moins un premier corps d'absorption de vibrations (19) formant une entretoise entre la première surface (21) et la première paroi (11) et au moins un deuxième corps d'absorption de vibrations (19) formant une entretoise entre la deuxième surface (20) de la coque creuse et lesdits moyens de fixation (17 ; 17a ; 17b).
  2. Dispositif électronique selon la revendication 1, comprenant au moins quatre desdits corps d'absorption de vibrations (19).
  3. Dispositif électronique selon la revendication 1 ou 2, où un renfoncement pour recevoir une partie d'un corps d'absorption de vibrations (19) est fourni dans au moins un de ladite première paroi (11), dudit moyen de fixation (17) et de ladite coque creuse (18).
  4. Dispositif électronique selon une quelconque des revendications 1 à 3, où ladite coque creuse (18) possède au moins une ouverture (25) où le haut-parleur (24) est monté.
  5. Dispositif électronique selon la revendication 4, où la première paroi (11) est une paroi extérieure du boîtier, où deux ouvertures (25) font face à ladite paroi (11), et où des passages du son (14, 15) sont formés dans ladite paroi (11) correspondant auxdites ouvertures.
  6. Dispositif électronique selon la revendication 4 ou 5, où la surface (21) faisant face à la paroi extérieure possède au moins deux facettes (22, 23) formant un angle obtus, et où une desdites ouvertures (25) est formée dans chaque facette (22, 23).
  7. Dispositif électronique selon une des revendications précédentes, où ladite première paroi (11) forme un côté inférieur dudit boîtier (1, 7, 11).
  8. Dispositif électronique selon la revendication 7, où la paroi (11) est courbée de manière à former, au niveau de son côté intérieur, un espace (16) pour recevoir l'unité de haut-parleur (18, 24) et, au niveau de son côté extérieur, un point d'appui (13) du boîtier.
  9. Dispositif électronique selon la revendication 7 ou 8, où au moins deux points d'appui supplémentaires sont formés par des pieds (6) s'étendant à partir du corps du boîtier.
  10. Dispositif électronique selon une des revendications précédentes, où l'unité de haut-parleur est une unité de caisson de basse.
  11. Dispositif électronique selon une des revendications précédentes, où le dispositif est un téléviseur.
EP03290983A 2003-04-22 2003-04-22 Dispositif électronique avec haut-parleur Expired - Lifetime EP1471766B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03290983A EP1471766B1 (fr) 2003-04-22 2003-04-22 Dispositif électronique avec haut-parleur
DE60335079T DE60335079D1 (de) 2003-04-22 2003-04-22 Elektronisches Gerät mit Lautsprecher
CN2004100328559A CN1540981B (zh) 2003-04-22 2004-04-13 具有扬声器的电子装置
US10/829,802 US7302075B2 (en) 2003-04-22 2004-04-22 Electronic device with loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03290983A EP1471766B1 (fr) 2003-04-22 2003-04-22 Dispositif électronique avec haut-parleur

Publications (2)

Publication Number Publication Date
EP1471766A1 EP1471766A1 (fr) 2004-10-27
EP1471766B1 true EP1471766B1 (fr) 2010-11-24

Family

ID=32946956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03290983A Expired - Lifetime EP1471766B1 (fr) 2003-04-22 2003-04-22 Dispositif électronique avec haut-parleur

Country Status (4)

Country Link
US (1) US7302075B2 (fr)
EP (1) EP1471766B1 (fr)
CN (1) CN1540981B (fr)
DE (1) DE60335079D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI122126B (fi) * 2005-10-05 2011-08-31 Genelec Oy Refleksikaiutinrakenne
US8199958B2 (en) 2008-05-22 2012-06-12 Robert Bosch Gmbh Battery charging jobsite audio apparatus
JP5469547B2 (ja) * 2010-06-25 2014-04-16 パナソニック株式会社 テレビ取付パネル
KR101830372B1 (ko) * 2015-09-01 2018-02-20 삼성전자주식회사 냉장고

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6043995A (ja) 1983-08-20 1985-03-08 Matsushita Electric Ind Co Ltd スピ−カの取付装置
FR2658021B1 (fr) * 1990-02-02 1995-06-16 Loire Electronique Installation sonore pour televiseur.
US5400408A (en) * 1993-06-23 1995-03-21 Apple Computer, Inc. High performance stereo sound enclosure for computer visual display monitor and method for construction
US5689574A (en) * 1995-03-29 1997-11-18 Apple Computer, Inc. Integral sound module for a modular monitor
JPH09219806A (ja) 1996-02-13 1997-08-19 Sony Corp 撮影装置
JPH10262293A (ja) * 1997-03-19 1998-09-29 Sony Corp 機器の音響装置
US6526150B2 (en) * 1998-07-10 2003-02-25 Siemens Information & Communication Mobile, Llc Telephone loudspeaker enclosure

Also Published As

Publication number Publication date
US7302075B2 (en) 2007-11-27
CN1540981B (zh) 2010-05-05
EP1471766A1 (fr) 2004-10-27
CN1540981A (zh) 2004-10-27
DE60335079D1 (de) 2011-01-05
US20040264728A1 (en) 2004-12-30

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